Exercise device



FIG. 1 is a perspective view of the exercise device showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is perspective view thereof showing the exercise device with an exemplary elastic band in-use by a user.

The broken lines illustrate environmental features that form no part of the claimed design. 

CLAIM The ornamental design for an exercise device, as shown and described. 